A variable curvature surface three-agent moving coating device for a blade mold and a coating process thereof

Abstract

The application discloses a kind of variable curvature surface three-agent mobile coating equipment of blade mould and its coating process, it is related to mobile coating equipment and mobile coating process, wherein mobile coating equipment includes track traveling device, material feeding device and rotary coating device, track traveling device includes track assembly and protective cover platform, the upper portion of protective cover platform is fixedly connected with material feeding device in the middle, the upper portion of protective cover platform is installed with the brush disc support extending to the outside of the rear end of track assembly left and right corresponding positions, and the end of the brush disc support is connected with rotary coating device;Wherein mobile coating process includes PLC programmable controller parameter setting, mould inner cavity test machine detection, equipment remote control mobile process, mobile coating process, coating process electrostatic intelligent monitoring and variable curvature surface anti-slip intelligent control steps;The application is installed in an integrated body by track traveling device, material feeding device and rotary coating device, and realizes intelligent control three-agent mobile coating operation.

Description

Technical Field

[0001] This invention relates to the field of wind turbine blade manufacturing technology, specifically to a three-agent moving coating device for variable curvature curved surfaces of blade molds and its coating process. Background Technology

[0002] With the continuous development of the wind power manufacturing industry, the demand for blades is also constantly increasing, and the requirements for product quality are becoming more and more stringent. At present, in the competitive environment of high efficiency, high quality and low cost, the wind power industry has gradually phased out blades shorter than 40 meters, and the mainstream blade lengths are usually 54, 56 and 68 meters, with the longest blades exceeding 70 meters. Blade molds have also grown and widened accordingly. The three-agent coating process used in the manufacturing process (molding agent for surface cleaning, hole sealing agent for drilling and sealing, and mold release agent for mold release) can no longer maximize the utilization efficiency of the three raw materials. Currently, the three-coat process for blade molds mainly relies on manual application. During the separate application of mold cleaner, sealant, and release agent, the increased mold length, larger surface area, and varying surface curvature lead to excessively long application times and significant time differences. Furthermore, relying solely on manual application results in inconsistent application pressure and dosage among different operators, making it difficult to ensure uniform coating thickness. Uneven manual application can also cause mold sticking and surface damage after prolonged use, shortening the mold's lifespan. To adapt to the current manual three-coat process for blade molds, the traditional approach is to increase the number of workers to shorten the application time. However, significantly increasing the number of workers makes it even more difficult to guarantee uniform coating. Additionally, the three agents are flammable and explosive, and extensive manual application cannot completely prevent static electricity generation, posing a fire risk. Therefore, developing a technology suitable for three-coat application on variable curvature surfaces of blade molds is urgently needed. Summary of the Invention

[0003] To address the above technical problems, this invention provides a three-agent mobile coating device and its coating process for variable curvature curved surfaces of blade molds. By adopting a combined remote-controlled movement and rotational coating method to replace manual coating, it reduces labor costs, shortens the coating time of the three agents, improves the production efficiency of blade molds, ensures coating uniformity, and extends the service life of the molds. At the same time, it utilizes intelligent coating control to maximize the effect of the three agents and avoids the risk of fire by intelligently preventing the generation of static electricity.

[0004] To solve the above-mentioned technical problems, the present invention provides a three-agent mobile coating device for a variable curvature surface of a blade mold, comprising a track-mounted traveling device, a material feeding device, and a rotary coating device. The track-mounted traveling device includes a track assembly and a protective cover platform. The protective cover platform is connected to the double-row ball bearing sleeve of the track assembly via a support rod. An electrostatic detector is installed at the bottom of the protective cover platform. Anti-slip dust suction cups are installed at the front and rear ends of the bottom of the protective cover platform via connectors. A vacuum generator is installed at the front upper part of the protective cover platform, and the vacuum generator is connected to the anti-slip dust suction cups via an air pipe. The material feeding device is fixedly connected to the upper center of the protective cover platform via a mounting base. The system includes a solvent storage tank, a solvent supply pump, and a spray head. The solvent storage tank houses the solvent supply pump, which is connected to the spray head via a delivery pipe. On the upper left and right sides of the protective cover platform, horizontally mounted brush holders extending outwards towards the rear end of the track assembly are respectively installed. The ends of these brush holders are connected to a rotary coating device. The rotary coating device includes a coating mounting plate, a brush connecting plate, a brush drive motor, and a coating brush. The upper outer side of the coating mounting plate is connected to the brush connecting plate via fastening bolts. The brush connecting plate is connected to the brush drive motor via several evenly spaced mounting holes. The output shaft of the brush drive motor is connected to a horizontally positioned coating brush.

[0005] Furthermore, the track assembly uses rubber drive tracks, the bottom of which is flush with the bottom of the anti-slip dust suction cup and the coating brush, respectively.

[0006] Furthermore, the track assembly controls the forward and reverse rotation of its travel motor via a connected radio remote control switch. This radio remote control switch is connected to a PLC programmable controller via electrical signals to control the on / off state, speed, and torque of the track assembly's travel motor.

[0007] Furthermore, the vacuum generator is connected to a PLC programmable controller via an electrical signal, and the PLC programmable controller controls the generation of negative pressure by transmitting speed and torque signals to a radio remote control switch.

[0008] Furthermore, the PLC programmable controller monitors the residual amount of static electricity by connecting to an electrostatic detector, and controls the switching of the track assembly's travel motor by feeding back control signals to the radio remote control switch through the received static electricity signals.

[0009] Furthermore, the solvent supply pump is electrically connected to a PLC programmable controller via a solenoid valve. The PLC programmable controller controls the flow rate of the solenoid valve of the solvent supply pump by transmitting switching signals and speed and torque signals to a radio remote control switch.

[0010] Furthermore, the brush drive motor is synchronously connected to the PLC programmable controller via an electrical signal, and the PLC programmable controller controls the rotation of the brush drive motor by transmitting a switching signal to the radio remote control switch.

[0011] Furthermore, the spray head is horizontally positioned between the rear end of the track assembly and the coating mounting plate. The spray head is fixed to the brush plate bracket, and the length of the spray head is the same as the coating width of the coating brush plate.

[0012] Furthermore, the coating mounting plate is vertically installed and connected perpendicularly to the brush plate connecting plate.

[0013] This invention also provides a three-agent moving coating process for variable curvature surfaces of blade molds, the process comprising the following steps:

[0014] Step 1: Set the PLC programmable controller parameters as follows: electrostatic monitoring parameter 0KV~±0.01KV corresponding positive and negative values, vacuum value parameter 0.6Mpa, angular velocity parameter 90° / s, linear velocity parameter 1~2m / s, curvature parameter R1500~R500, track assembly speed parameter 6r / s~10r / s, spray flow rate parameter 0.01L~0.04L / ㎡, travel motor speed parameter 20r / s~25r / s, coating motor speed parameter 20r / s~25r / s;

[0015] Step 2, Mold Cavity Trial Testing Process: Place the coating equipment inside the mold cavity. According to the parameters set in Step 1, transmit a remote control signal to the radio remote control switch through the PLC programmable controller. Turn on the radio remote control switch to control the movement of the track assembly. During the movement of the track assembly, use an electrostatic detector to detect whether there is static electricity on the mold surface and feed back the static electricity residue to the PLC programmable controller for monitoring. If there is static electricity, the PLC programmable controller transmits an electrical signal to control the radio remote control switch to turn off and perform static electricity elimination. If there is no static electricity, the trial testing is complete.

[0016] Step 3, Remote Control Movement of Equipment: According to the parameters set in Step 1, the PLC programmable controller remotely controls the radio remote control switch to turn off and sends an electrical signal to the vacuum generator. The vacuum generator generates a vacuum negative pressure to pump air, and the track assembly is adsorbed onto the mold surface by the anti-slip dust removal suction cup. Following the mold cleaning, sealing, and demolding operation procedures, 4L of cleaning agent, sealing agent, and demolding agent are added to the solvent storage tank in sequence. After any one of the solvents is added, the track assembly will generate friction with the blade mold. At this time, the PLC programmable controller transmits the set parameter signal to the radio remote control switch and transmits the turn-off signal to the vacuum generator, and remotely controls the track assembly's travel motor to rotate and move.

[0017] Step 4, Mobile Coating Process: During the movement of the track assembly via remote control in Step 3, the PLC programmable controller controls the opening of the solenoid valve of the solvent supply pump according to the parameters set in Step 1 to control the solvent flow rate. The solvent is delivered to the spray head spray bar through the delivery pipe, and the solvent is sprayed from the spray head spray bar onto the mold surface. At the same time, the PLC programmable controller controls the rotary coating device according to the parameters set in Step 1, and drives the brush drive motor to rotate evenly, so that the coating brush rotates to evenly coat the solvent sprayed on the mold surface.

[0018] Step 5, Electrostatic Intelligent Monitoring during Coating Process: During the mobile coating operation using the coating equipment in Step 4, the PLC programmable controller monitors the electrostatic value detected by the electrostatic detector according to the parameters set in Step 1. If the positive or negative voltage detected by the electrostatic detector corresponds to the generation of electrostatics, the PLC programmable controller sends a shutdown signal to the radio remote control switch to stop the mobile coating process in Step 4. If the positive or negative value detected by the electrostatic detector corresponds to the generation of electrostatics, the mobile coating process in Step 4 operates normally.

[0019] Step Six, Intelligent Control for Anti-Slip on Variable Curvature Surfaces: During the mobile coating operation using the coating equipment from Step Four, when the coating equipment moves to a mold surface with varying curvature, if the friction between the track assembly and the mold surface decreases and the track assembly speed is lower than the parameter value set in Step One, the speed of the traveling motor controlled by the radio remote control switch exceeds the parameter value set by the PLC programmable controller in Step One. At this time, the PLC programmable controller controls the vacuum generator to generate negative pressure suction, which uses anti-slip dust removal suction cups to adhere the coating equipment to the mold surface to prevent slippage. Simultaneously, the suction process can also remove dust hidden on the mold surface. After the coating equipment is adhered, the friction between the track assembly and the mold surface increases. At this time, the PLC programmable controller transmits the speed signal after the speed change to the radio remote control switch, which controls the traveling motor to rotate, increasing the friction between the track assembly and the mold surface during the movement of the track assembly. When the track assembly speed meets the parameter value set in Step One, the coating equipment can continue the mobile coating process of Step Four.

[0020] The coating equipment and coating process of the present invention have the following advantages compared with the prior art:

[0021] 1. This invention integrates the material feeding device and the rotary coating device into a single unit via a tracked traveling device, enabling the spraying of solvents for rotary coating of the mold surface during tracked movement. This mechanical and automated coating replaces manual coating, reducing labor costs, shortening the three-coat application time, and improving the production efficiency of blade molds.

[0022] 2. This invention uses a PLC programmable controller to connect the radio remote control switch for controlling the travel motor, the solenoid valve for controlling the solvent supply pump, and the brush drive motor for controlling the rotation of the coating brush. This enables centralized, hierarchical control of the movement of the coating equipment, the spraying of the three solvents, and the rotational coating. By using intelligent coating control, the three solvents are maximized, ensuring uniform application of the three solvents during the movement of the coating equipment and extending the service life of the mold.

[0023] 3. This invention installs a vacuum generator at the front end of the protective cover platform of the track assembly, and anti-slip dust removal suction cups at the front and rear ends of the bottom of the protective cover platform. The vacuum generator and the anti-slip dust removal suction cups are connected by an air pipe, and the negative pressure generated by the vacuum generator is controlled by a PLC programmable controller. This allows the anti-slip dust removal suction cups to adhere to the mold when the track assembly moves to the mold's multi-curvature surface, preventing the coating equipment from slipping and ensuring the intelligent control effect of the coating process.

[0024] 4. This invention uses an electrostatic detector installed at the bottom of the anti-slip dust removal suction cup. The electrostatic detector is connected to a PLC programmable controller to detect the static electricity on the mold surface. The PLC programmable controller is used to perform intelligent monitoring of static electricity during the coating process, thereby achieving intelligent prevention and control of static electricity generation and avoiding the risk of fire caused by moving the coating process. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the axial view structure of the present invention;

[0026] Figure 2 This is an exploded view of the axial structure of the present invention;

[0027] Figure 3 This is a schematic diagram of the main structure of the present invention;

[0028] Figure 4 This is a structural diagram of the control module of the present invention.

[0029] In the diagram: 1. Track travel device, 101. Track assembly, 1011. Radio remote control switch, 102. Protective cover platform, 2. Static electricity detector, 3. Anti-slip dust suction cup, 4. Vacuum generator, 5. Material feeding device, 501. Solvent storage tank, 502. Solvent supply pump, 503. Spray head spray bar, 6. Brush plate bracket, 7. Rotary coating device, 701. Coating mounting plate, 702. Brush plate connecting plate, 703. Brush plate drive motor, 704. Coating brush plate, 8. PLC programmable controller. Detailed Implementation

[0030] The invention will be further explained below with reference to the accompanying drawings.

[0031] like Figure 1-4The diagram illustrates a three-agent mobile coating equipment and its coating process for a variable curvature surface of a blade mold. The mobile coating equipment includes a tracked traveling device 1, a material feeding device 5, and a rotary coating device 7. The tracked traveling device 1 includes a track assembly 101 and a protective cover platform 102. The material feeding device 5 is fixedly connected to the upper center of the protective cover platform 102 via a mounting base. Brush holders 6, extending outwards from the rear end of the track assembly 101, are horizontally mounted on the upper left and right corresponding positions of the protective cover platform 102. The rotary coating device 7 is connected to the end of the brush holder 6. The mobile coating process includes PLC programmable controller parameter setting, mold cavity trial testing, remote control of equipment movement, mobile coating process, electrostatic intelligent monitoring during coating, and intelligent control steps for preventing slippage on the variable curvature surface. By integrating the tracked traveling device 1, the material feeding device 5, and the rotary coating device 7 into a single unit, intelligent control of the three-agent mobile coating operation is achieved.

[0032] To achieve intelligent movement of the coating process in the coating equipment of the present invention, the track assembly 101 of the track travel device 1 adopts anti-static rubber transmission track. The double-row ball bearing sleeve of the track assembly 101 is connected to the protective cover platform 102 through the support rod. The track assembly 101 also includes a travel motor that drives the two side tracks. The travel motor of the track assembly 101 is controlled to rotate forward and backward by connecting to the radio remote control switch 1011 to ensure the drive of the two side tracks of the track assembly 101. The radio remote control switch 1011 is connected to the PLC programmable controller 8 through electrical signals to realize remote control. The PLC programmable controller 8 can adopt the STM32 control system with PID intelligent calculation module to realize independent real-time calculation and control the output of electrical signals of the supply system according to the calculation results, so as to achieve the function of modular centralized intelligent hierarchical allocation. Therefore, the PLC programmable controller 8 can transmit the switching signal and speed and torque signal of the travel motor through remote control and remotely control the radio remote control switch 1011 to realize the intelligent control movement of the coating equipment.

[0033] To achieve anti-static control during the coating process of this invention, an electrostatic detector 2 is installed at the bottom of the protective cover platform 102 of the coating equipment. The electrostatic detector 2 is used to detect the amount of static electricity residue on the mold surface, and monitors the positive and negative values ​​of the static electricity residue by connecting to a PLC programmable controller 8. The PLC programmable controller 8 receives the static electricity signal and transmits the control signal to the radio remote control switch 1011 to control the travel motor switch of the track assembly 101, thereby preventing the generation of static electricity during the movement of the coating equipment and avoiding fire hazards.

[0034] To achieve the spraying control of the three solvents during the moving process of the coating equipment of the present invention, the material feeding device 5 is installed at the center of the upper part of the protective cover platform 102 and is driven by the tracked travel device 1 to move and spray. The material feeding device 5 includes a solvent storage tank 501, a solvent supply pump 502, and a spray head spray bar 503. The solvent storage tank 501 is equipped with a solvent supply pump 502, which is connected to the spray head spray bar 503 through a liquid delivery pipe. The solvent supply pump 502 is also equipped with a solenoid valve to control the solvent output flow rate. After the solenoid valve is installed, the solvent supply pump 502 is connected to the PLC programmable controller 8 by electrical signal to issue control commands. The PLC programmable controller 8 uses the switch signal and speed and torque signal transmitted to the radio remote control switch 1011 to control the flow rate of the solvent supply pump 502 to the spray head spray bar, thereby realizing the spraying control of the solvent during the moving process.

[0035] To achieve rotary coating control of the mobile spraying of three-agent solvent process in the coating equipment of this invention, the rotary coating device 7 is installed behind the protective cover platform 102 using a brush plate bracket 6. The rotary coating device 7 is driven by a tracked travel device 1 to move and coat. The rotary coating device 7 includes a coating mounting plate 701, a brush plate connecting plate 702, a brush plate drive motor 703, and a coating brush 704. A spray head 503 is horizontally arranged between the coating mounting plate 701 and the rear end of the track assembly 101. The spray head 503 is fixed to the brush plate bracket 6, and its length is the same as the coating width of the coating brush 704, ensuring complete solvent coating on the mold surface. During the coating process, the upper outer side of the coating mounting plate 701 is connected to the brush plate connecting plate 702 by fastening bolts. 2. The brush plate connecting plate 702 is vertically connected to the vertically arranged coating mounting plate 701. The brush plate connecting plate 702 is connected to a brush drive motor 703 through a number of evenly spaced mounting holes. The output shaft of the brush drive motor 703 is connected to a horizontally arranged coating brush 704 for rotational coating. The brush drive motor 703 is also synchronously connected to the PLC programmable controller 8 via an electrical signal to issue control commands. The PLC programmable controller 8 uses the switch signal transmitted to the radio remote control switch 1011 to control the rotation of the brush drive motor 703, thereby controlling the coating brush 704 to rotate and coat during the movement of the coating equipment. In order to coat evenly, the bottom of the coating brush 704 is flush with the bottom of the track assembly 101 and the bottom of the anti-slip dust removal suction cup 3.

[0036] To prevent slippage on surfaces with varying curvature during the coating process of the coating equipment of the present invention, anti-slip dust removal suction cups 3 are installed at the front and rear ends of the bottom of the protective cover platform 102 via connectors. A vacuum generator 4 is provided at the upper front end of the protective cover platform 102. The vacuum generator 4 is connected to the anti-slip dust removal suction cups 3 via air pipes for adsorption. The vacuum generator 4 is also connected to the PLC programmable controller 8 via electrical signals. When the speed of the traveling motor controlled by the radio remote control switch 1011 is higher than the speed setting range, it indicates that the speed of the track assembly 101 is less than the set value. The PLC programmable controller 8 starts the vacuum generator 4 by using the speed and torque signals transmitted to the radio remote control switch 1011. The vacuum generator 4 generates negative pressure by pumping air, so that the anti-slip dust removal suction cups 3 not only remove dust from the surface of the mold with varying curvature, but also adsorb the track traveling device 1 onto the surface of the mold to prevent slippage.

[0037] To better understand the working principle of the three-agent mobile coating equipment for the variable curvature surface of the blade mold of the present invention, the operation process of the coating equipment is as follows: First, before operation, the blade mold is destaticated. The tracked traveling device 1 is remotely controlled by the PLC programmable controller 8 to move in the inner cavity of the blade mold. During the movement, the static electricity on the mold surface is detected and eliminated by the static electricity detector 2. Then, according to the cleaning, sealing and demolding processes of the mold, one of the corresponding cleaning agent, sealing agent and demolding agent is added to the solvent storage tank 501, or a solvent storage tank 501 containing different cleaning agents, sealing agents and demolding agents is installed and fixed on the protective cover platform 102, and the solvent supply pump 502 is loaded into the solvent storage tank 501. 1. The internally connected spray head spray bar 503 begins operation. During operation, the PLC programmable controller 8 transmits an activation signal to the radio remote control switch 1011 to control the rotation of the travel motor of the track assembly 101. This rotation drives the track travel device 1 to move. During the movement of the track travel device 1, the PLC programmable controller 8 opens the solenoid valve of the solvent supply pump 502 and controls the solvent flow rate according to set parameters. The solvent in the solvent storage tank 501 is then transported through the delivery pipe to the spray head spray bar 503 and sprayed onto the mold surface. Simultaneously, as the solvent is sprayed from the nozzle, the PLC programmable controller 8 controls the brush drive motor 703 to rotate synchronously. The brush drive motor 703 rotates... The process drives each coating brush 704 to rotate and coat the solvent sprayed onto the mold. When the track assembly 101 moves to the position of the mold's variable curvature surface during the coating operation, the friction between the track assembly 101 and the mold surface decreases, and the track assembly speed is lower than the set parameter value of the PLC programmable controller 8. At this time, the speed of the travel motor will exceed the set parameter value of the PLC programmable controller 8. After the radio remote control switch 1011 senses the reduced speed and torque of the travel motor, it feeds back to the PLC programmable controller 8. First, the PLC programmable controller 8 sends a stop command to the solenoid valve of the solvent supply pump 502 and the brush drive motor 703 respectively, pausing the spraying of solvent and the rotation coating. Then, the PLC programmable controller 8 sends a signal to the vacuum generator 4 to control its start. The vacuum generator 4 creates a negative pressure by pumping air, causing the anti-slip dust suction cup 3 to adhere to the mold surface under the negative pressure to prevent the coating equipment from slipping. Then, the PLC programmable controller 8 sends a speed signal after speed change to the radio remote control switch 1011. The radio remote control switch 1011 controls the travel motor to rotate. During the movement of the track assembly 101, the friction between the track assembly 101 and the curved surface of the mold increases, allowing the track assembly 101 to continue to move normally. At this time, the PLC programmable controller 8 sends a start command to the solenoid valve of the solvent supply pump 502 and the brush drive motor 703 to continue the solvent spraying and rotary coating operations.

[0038] To improve the operation of the three-agent moving coating device for the variable curvature surface of the blade mold, this invention also proposes a three-agent moving coating process for the variable curvature surface of the blade mold, which includes the following steps:

[0039] Step 1: Set the PLC programmable controller parameters as follows: electrostatic monitoring parameter 0KV~±0.01KV corresponding positive and negative values, vacuum value parameter 0.6Mpa, angular velocity parameter 90° / s, linear velocity parameter 1~2m / s, curvature parameter R1500~R500, track assembly speed parameter 6r / s~10r / s, spray flow rate parameter 0.01L~0.04L / ㎡, travel motor speed parameter 20r / s~25r / s, coating motor speed parameter 20r / s~25r / s;

[0040] Step 2, Mold Cavity Trial Testing Process: Place the coating equipment inside the mold cavity. According to the parameters set in Step 1, transmit a remote control signal to the radio remote control switch through the PLC programmable controller. Turn on the radio remote control switch to control the movement of the track assembly. During the movement of the track assembly, use an electrostatic detector to detect whether there is static electricity on the mold surface and feed back the static electricity residue to the PLC programmable controller for monitoring. If there is static electricity, the PLC programmable controller transmits an electrical signal to control the radio remote control switch to turn off and perform static electricity elimination. If there is no static electricity, the trial testing is complete.

[0041] Step 3, Remote Control Movement of Equipment: According to the parameters set in Step 1, the PLC programmable controller remotely controls the radio remote control switch to turn off and sends an electrical signal to the vacuum generator. The vacuum generator generates a vacuum negative pressure to pump air, and the track assembly is adsorbed onto the mold surface by the anti-slip dust removal suction cup. Following the mold cleaning, sealing, and demolding operation procedures, 4L of cleaning agent, sealing agent, and demolding agent are added to the solvent storage tank in sequence. After any one of the solvents is added, the track assembly will generate friction with the blade mold. At this time, the PLC programmable controller transmits the set parameter signal to the radio remote control switch and transmits the turn-off signal to the vacuum generator, and remotely controls the track assembly's travel motor to rotate and move.

[0042] Step 4, Mobile Coating Process: During the movement of the track assembly via remote control in Step 3, the PLC programmable controller controls the opening of the solenoid valve of the solvent supply pump according to the parameters set in Step 1 to control the solvent flow rate. The solvent is delivered to the spray head spray bar through the delivery pipe, and the solvent is sprayed from the spray head spray bar onto the mold surface. At the same time, the PLC programmable controller controls the rotary coating device according to the parameters set in Step 1, and drives the brush drive motor to rotate evenly, so that the coating brush rotates to evenly coat the solvent sprayed on the mold surface.

[0043] Step 5, Electrostatic Intelligent Monitoring during Coating Process: During the mobile coating operation using the coating equipment in Step 4, the PLC programmable controller monitors the electrostatic value detected by the electrostatic detector according to the parameters set in Step 1. If the positive or negative voltage detected by the electrostatic detector corresponds to the generation of electrostatics, the PLC programmable controller sends a shutdown signal to the radio remote control switch to stop the mobile coating process in Step 4. If the positive or negative value detected by the electrostatic detector corresponds to the generation of electrostatics, the mobile coating process in Step 4 operates normally.

[0044] Step Six, Intelligent Control for Anti-Slip on Variable Curvature Surfaces: During the mobile coating operation using the coating equipment from Step Four, when the coating equipment moves to a mold surface with varying curvature, if the friction between the track assembly and the mold surface decreases and the track assembly speed is lower than the parameter value set in Step One, the speed of the traveling motor controlled by the radio remote control switch exceeds the parameter value set by the PLC programmable controller in Step One. At this time, the PLC programmable controller controls the vacuum generator to generate negative pressure suction, which uses anti-slip dust removal suction cups to adhere the coating equipment to the mold surface to prevent slippage. Simultaneously, the suction process can also remove dust hidden on the mold surface. After the coating equipment is adhered, the friction between the track assembly and the mold surface increases. At this time, the PLC programmable controller transmits the speed signal after the speed change to the radio remote control switch, which controls the traveling motor to rotate, increasing the friction between the track assembly and the mold surface during the movement of the track assembly. When the track assembly speed meets the parameter value set in Step One, the coating equipment can continue the mobile coating process of Step Four.

[0045] To better explain the mobile coating process of the present invention, specific embodiments are provided:

[0046] Example 1 describes the process of applying a cleaning agent to a blade mold, and the process steps are as follows:

[0047] Step 1: Set the PLC programmable controller parameters as follows: electrostatic monitoring parameter 0KV~±0.01KV corresponding positive and negative values, vacuum value parameter 0.6Mpa, angular velocity parameter 90° / s, linear velocity parameter 1~2m / s, curvature parameter R1500~R500, track assembly speed parameter 6r / s~10r / s, spray flow rate parameter 0.01L~0.04L / ㎡, travel motor speed parameter 20r / s~25r / s, coating motor speed parameter 20r / s~25r / s;

[0048] Step 2, Mold Cavity Trial Testing Process: Place the coating equipment inside the mold cavity. According to the parameters set in Step 1, transmit a remote control signal to the radio remote control switch through the PLC programmable controller. Turn on the radio remote control switch to control the movement of the track assembly. During the movement of the track assembly, use an electrostatic detector to detect whether there is static electricity on the mold surface and feed back the static electricity residue to the PLC programmable controller for monitoring. If there is static electricity, the PLC programmable controller transmits an electrical signal to control the radio remote control switch to turn off and perform static electricity elimination. If there is no static electricity, the trial testing is complete.

[0049] Step 3, Remote Control Movement of Equipment: According to the parameters set in Step 1, the PLC programmable controller remotely controls the radio remote control switch to turn off and sends an electrical signal to the vacuum generator. The vacuum generator generates a vacuum negative pressure to pump air, and the track assembly is adsorbed onto the mold surface by the anti-slip dust suction cup. According to the cleaning process requirements, 4L of cleaning agent is added to the solvent storage tank. After the cleaning agent is added, the track assembly will generate friction with the blade mold. At this time, the PLC programmable controller transmits the set parameter signal to the radio remote control switch and transmits the turn-off signal to the vacuum generator, and remotely controls the track assembly's travel motor to rotate and move.

[0050] Step 4, Mobile Cleaning and Coating Process: Following the remote control of the track assembly movement process in Step 3, the PLC programmable controller transmits the set parameter signals according to the requirements of the cleaning agent coating process: linear velocity parameter 2m / s, track assembly rotation speed parameter 10r / s, spray flow rate parameter 0.04L / ㎡, travel motor rotation speed parameter 25r / s, and coating motor rotation speed parameter 25r / s. This signals control the opening of the solenoid valve of the solvent supply pump to control the cleaning agent flow rate. The cleaning agent is delivered to the spray head spray bar through the infusion pipe, and the cleaning agent is sprayed from the spray head spray bar onto the mold surface. At the same time, the synchronous drive motor of the brush plate rotates evenly, causing the coating brush plate to rotate and evenly coat the cleaning agent sprayed on the mold surface to achieve the purpose of mold cleaning.

[0051] Step 5, Electrostatic Intelligent Monitoring during Coating Process: During the mobile coating operation using the coating equipment in Step 4, the PLC programmable controller monitors the electrostatic value detected by the electrostatic detector according to the parameters set in Step 1. If the positive or negative voltage detected by the electrostatic detector corresponds to the generation of electrostatics, the PLC programmable controller sends a shutdown signal to the radio remote control switch to stop the mobile coating process in Step 4. If the positive or negative value detected by the electrostatic detector corresponds to the generation of electrostatics, the mobile coating process in Step 4 operates normally.

[0052] Step Six, Intelligent Control for Anti-Slip on Variable Curvature Surfaces: During the mobile coating operation using the coating equipment from Step Four, when the coating equipment moves to a mold surface with variable curvature, if the friction between the track assembly and the mold surface decreases and the track assembly speed is less than the parameter value selected in Step Four, the speed of the traveling motor controlled by the radio remote control switch exceeds the parameter value selected by the PLC programmable controller in Step Four. At this time, the PLC programmable controller controls the vacuum generator to generate negative pressure suction, which uses anti-slip dust removal suction cups to adhere the coating equipment to the mold surface to prevent slippage. Simultaneously, the suction process can also remove dust hidden on the mold surface. After the coating equipment is adhered, the friction between the track assembly and the mold surface increases. At this time, the PLC programmable controller transmits the speed signal after the speed change to the radio remote control switch, which controls the traveling motor to rotate, increasing the friction between the track assembly and the mold surface during the movement of the track assembly. When the track assembly speed meets the parameter value selected in Step Four, the coating equipment can continue the mobile coating process of Step Four.

[0053] Example 2 describes the process of applying a sealing agent to a blade mold, and the process steps are as follows:

[0054] Step 1: Set the PLC programmable controller parameters in the same way as in Step 1 of Example 1;

[0055] Step two, the mold cavity trial testing process is the same as step two of Example 1;

[0056] Step 3, Remote Control Movement of Equipment: According to the parameters set in Step 1, the PLC programmable controller remotely controls the radio remote control switch to turn off and sends an electrical signal to the vacuum generator. The vacuum generator generates a vacuum negative pressure to pump air, and the track assembly is adsorbed onto the mold surface by the anti-slip dust suction cup. According to the requirements of the sealing process, 4L of sealing agent is added to the solvent storage tank. After the sealing agent is added, the track assembly will generate friction with the blade mold. At this time, the PLC programmable controller transmits the set parameter signal to the radio remote control switch and transmits the turn-off signal to the vacuum generator, and remotely controls the travel motor of the track assembly to rotate and move.

[0057] Step 4, Moving and Sealing Coating Process: During the remote control of the track assembly movement process in Step 3, the PLC programmable controller transmits the set parameter signals of linear velocity (1 m / s), track assembly rotation speed (6 r / s), spray flow rate (0.01 L / m²), travel motor rotation speed (20 r / s), and coating motor rotation speed (20 r / s) according to the requirements of the sealing agent coating process. This signals control the opening of the solenoid valve of the solvent supply pump to control the flow rate of the sealing agent. The sealing agent is delivered to the spray head through the liquid delivery pipe, and the sealing agent is sprayed from the nozzle of the spray head onto the mold surface. At the same time, the synchronous drive motor of the brush plate rotates evenly, so that the coating brush plate rotates to evenly coat the sealing agent sprayed on the mold surface, thereby achieving the purpose of sealing the mold.

[0058] Step 5, the electrostatic intelligent monitoring of the coating process is the same as step 5 in Example 1;

[0059] Step six, the method for intelligent control of anti-slip on variable curvature surface is the same as step six in Example 1.

[0060] Example 3 describes the process of applying a release agent to a blade mold, and the process steps are as follows:

[0061] Step 1: Set the PLC programmable controller parameters in the same way as in Step 1 of Example 1;

[0062] Step two, the mold cavity trial testing process is the same as step two of Example 1;

[0063] Step 3, Remote Control Movement of Equipment: According to the parameters set in Step 1, the PLC programmable controller remotely controls the radio remote control switch to turn off and sends an electrical signal to the vacuum generator. The vacuum generator generates a vacuum negative pressure to pump air, and the track assembly is adsorbed onto the mold surface by the anti-slip dust removal suction cup. According to the demolding process requirements, 4L of demolding agent is added to the solvent storage tank. After the demolding agent is added, the track assembly will generate friction with the blade mold. At this time, the PLC programmable controller transmits the set parameter signal to the radio remote control switch and transmits the turn-off signal to the vacuum generator, and remotely controls the track assembly's travel motor to rotate and move.

[0064] Step 4, Mold Release Agent Application Process: Following the remote control of the track assembly movement process in Step 3, the PLC programmable controller transmits the set parameter signals according to the mold release agent application process requirements: linear velocity parameter 1.5m / s, track assembly rotation speed parameter 8r / s, spray flow rate parameter 0.03L / ㎡, travel motor rotation speed parameter 22r / s, and coating motor rotation speed parameter 22r / s. This signals control the opening of the solenoid valve of the solvent supply pump to control the flow rate of the mold release agent. The mold release agent is delivered to the spray head spray bar through the liquid delivery pipe, and sprayed from the spray head spray bar onto the mold surface. At the same time, the synchronous drive motor of the brush plate rotates evenly, causing the coating brush plate to rotate and evenly apply the mold release agent sprayed on the mold surface, thereby achieving the purpose of mold release.

[0065] Step 5, the electrostatic intelligent monitoring of the coating process is the same as step 5 in Example 1;

[0066] Step six, the method for intelligent control of anti-slip on variable curvature surface is the same as step six in Example 1.

[0067] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A three-agent moving coating device for a variable curvature surface of a blade mold, characterized in that: The device includes a tracked traveling device (1), a material feeding device (5), and a rotary coating device (7). The tracked traveling device (1) includes a track assembly (101) and a protective cover platform (102). The protective cover platform (102) is connected to the double-row ball bearing sleeve of the track assembly (101) via a support rod. An electrostatic detector (2) is installed at the bottom of the protective cover platform (102). Anti-slip dust removal suction cups (3) are installed at the front and rear ends of the bottom of the protective cover platform (102) via connectors. A vacuum generator (4) is provided at the front end of the upper part of the protective cover platform (102). The vacuum generator (4) is connected to the anti-slip dust removal suction cup (3) via an air pipe. The material feeding device (5) is fixedly connected to the upper center of the protective cover platform (102) via a mounting base. The material feeding device (5) includes a solvent storage tank (501), a solvent supply pump (502), and a spray head spray bar (503). The solvent storage tank (501) is equipped with a solvent supply pump (502), which is connected to the spray head spray bar (503) through a liquid delivery pipe; the upper left and right corresponding positions of the protective cover platform (102) are respectively horizontally installed with brush plate brackets (6) extending to the outer rear end of the track assembly (101), and the end of the brush plate bracket (6) is connected to a rotary coating device (7). The rotary coating device (7) includes a coating mounting plate (701), a brush plate connecting plate (702), a brush plate drive motor (703), and a coating brush plate (704). The upper outer side of the coating mounting plate (701) is connected to the brush plate connecting plate (702) by fastening bolts. The brush plate connecting plate (702) is connected to the brush plate drive motor (703) through several evenly opened mounting holes. The output shaft end of the brush plate drive motor (703) is connected to the horizontally arranged coating brush plate (704).

2. The three-agent moving coating equipment for variable curvature curved surfaces of blade molds according to claim 1, characterized in that: The track assembly (101) uses a rubber drive track, the bottom of which is flush with the bottom of the anti-slip dust suction cup (3) and the coating brush (704).

3. The three-agent moving coating equipment for variable curvature curved surfaces of blade molds according to claim 1, characterized in that: The track assembly (101) controls the forward and reverse rotation of the track motor by connecting a radio remote control switch (1011). The radio remote control switch (1011) is connected to a PLC programmable controller (8) via an electrical signal to control the on / off state, speed and torque of the track motor.

4. The three-agent moving coating equipment for variable curvature surface of blade mold according to claim 3, characterized in that: The vacuum generator (4) is connected to the PLC programmable controller (8) via an electrical signal. The PLC programmable controller (8) controls the generation of negative pressure by transmitting the speed and torque signals to the radio remote control switch (1011).

5. The three-agent moving coating equipment for variable curvature surface of blade mold according to claim 3, characterized in that: The PLC programmable controller (8) monitors the residual amount of static electricity by connecting to the electrostatic detector (2), and transmits control signals to the radio remote control switch (1011) through the received static electricity signal to control the travel motor switch of the track assembly (101).

6. The three-agent moving coating equipment for variable curvature curved surfaces of blade molds according to claim 3, characterized in that: The solvent supply pump (502) is electrically connected to the PLC programmable controller (8) via a solenoid valve. The PLC programmable controller (8) controls the flow rate of the solenoid valve of the solvent supply pump (502) by transmitting the switching signal and speed and torque signal to the radio remote control switch (1011).

7. The three-agent moving coating equipment for variable curvature curved surfaces of blade molds according to claim 3, characterized in that: The brush drive motor (703) is synchronously connected to the PLC programmable controller (8) via an electrical signal. The PLC programmable controller (8) controls the rotation of the brush drive motor (703) by transmitting a switch signal to the radio remote control switch (1011).

8. The three-agent moving coating equipment for variable curvature surface of blade mold according to claim 1, characterized in that: The spray head spray bar (503) is horizontally positioned between the rear end of the track assembly (101) and the coating mounting plate (701). The spray head spray bar (503) is fixed on the brush plate bracket (6), and the length of the spray head spray bar (503) is the same as the coating width of the coating brush plate (704).

9. The three-agent moving coating equipment for variable curvature surface of blade mold according to claim 1, characterized in that: The coating mounting plate (701) is vertically set and connected to the brush plate connecting plate (702) in a perpendicular manner.

10. A coating process based on the three-agent moving coating equipment for variable curvature surfaces of blade molds according to any one of claims 1-9, characterized in that: The process includes the following steps: Step 1: Set the PLC programmable controller parameters as follows: electrostatic monitoring parameter 0KV~±0.01KV corresponding positive and negative values, vacuum value parameter 0.6Mpa, angular velocity parameter 90° / s, linear velocity parameter 1~2m / s, curvature parameter R1500~R500, track assembly speed parameter 6r / s~10r / s, spray flow rate parameter 0.01L~0.04L / ㎡, travel motor speed parameter 20r / s~25r / s, coating motor speed parameter 20r / s~25r / s; Step 2, Mold Cavity Trial Testing Process: Place the coating equipment inside the mold cavity. According to the parameters set in Step 1, transmit a remote control signal to the radio remote control switch through the PLC programmable controller. Turn on the radio remote control switch to control the movement of the track assembly. During the movement of the track assembly, use an electrostatic detector to detect whether there is static electricity on the mold surface and feed back the static electricity residue to the PLC programmable controller for monitoring. If there is static electricity, the PLC programmable controller transmits an electrical signal to control the radio remote control switch to turn off and perform static electricity elimination. If there is no static electricity, the trial testing is complete. Step 3, Remote Control Movement of Equipment: According to the parameters set in Step 1, the PLC programmable controller remotely controls the radio remote control switch to turn off and sends an electrical signal to the vacuum generator. The vacuum generator generates a vacuum negative pressure to pump air, and the track assembly is adsorbed onto the mold surface by the anti-slip dust removal suction cup. Following the mold cleaning, sealing, and demolding operation procedures, 4L of cleaning agent, sealing agent, and demolding agent are added to the solvent storage tank in sequence. After any one of the solvents is added, the track assembly will generate friction with the blade mold. At this time, the PLC programmable controller transmits the set parameter signal to the radio remote control switch and transmits the turn-off signal to the vacuum generator, and remotely controls the track assembly's travel motor to rotate and move. Step 4, Mobile Coating Process: During the movement of the track assembly via remote control in Step 3, the PLC programmable controller controls the opening of the solenoid valve of the solvent supply pump according to the parameters set in Step 1 to control the solvent flow rate. The solvent is delivered to the spray head spray bar through the delivery pipe, and the solvent is sprayed from the spray head spray bar onto the mold surface. At the same time, the PLC programmable controller controls the rotary coating device according to the parameters set in Step 1, and drives the brush drive motor to rotate evenly, so that the coating brush rotates to evenly coat the solvent sprayed on the mold surface. Step 5, Electrostatic Intelligent Monitoring during Coating Process: During the mobile coating operation using the coating equipment in Step 4, the PLC programmable controller monitors the electrostatic value detected by the electrostatic detector according to the parameters set in Step 1. If the positive or negative voltage detected by the electrostatic detector corresponds to the generation of electrostatics, the PLC programmable controller sends a shutdown signal to the radio remote control switch to stop the mobile coating process in Step 4. If the positive or negative value detected by the electrostatic detector corresponds to the generation of electrostatics, the mobile coating process in Step 4 operates normally. Step Six, Intelligent Control for Anti-Slip on Variable Curvature Surfaces: During the mobile coating operation using the coating equipment from Step Four, when the coating equipment moves to a mold surface with varying curvature, if the friction between the track assembly and the mold surface decreases and the track assembly speed is lower than the parameter value set in Step One, the speed of the traveling motor controlled by the radio remote control switch exceeds the parameter value set by the PLC programmable controller in Step One. At this time, the PLC programmable controller controls the vacuum generator to generate negative pressure suction, which uses anti-slip dust removal suction cups to adhere the coating equipment to the mold surface to prevent slippage. Simultaneously, the suction process can also remove dust hidden on the mold surface. After the coating equipment is adhered, the friction between the track assembly and the mold surface increases. At this time, the PLC programmable controller transmits the speed signal after the speed change to the radio remote control switch, which controls the traveling motor to rotate, increasing the friction between the track assembly and the mold surface during the movement of the track assembly. When the track assembly speed meets the parameter value set in Step One, the coating equipment can continue the mobile coating process of Step Four.

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